Is the overload leaf making full contact with the rest of the leaf pack? It should be in the "n" shape, not making full contact with the rest of the pack. But I wonder if flipping the overload leaf would help keep the truck from bottoming out with a load, without producing a harsher ride?

flipping the overload leaf will not effect the ride quality, that is the add-a-leaf. what it will effect is at what point in the suspension travel the spring rate about doubles. do it right, flip it right side up